[Matlab] Plotting a function inside a m-file?

[tahayassen]

A3.m:

%x = 0:pi/100:2*pi;
%y = sin(2*x);
%z = 2*cos(2*x);
%plot(x,y,'k',x,z,'--b')
%title('Plot of f(x)=sin(x) and it''s derivative')
%xlabel('X-axis')
%ylabel('Y-axis')
%legend('sin(2x)','2cos(2x)')
x = -2:0.01:2
y = f2(x)
plot(x,y)

f2.m:

function F = f2(x)
F(1) = 2*(x(1)^4)-3*(x(1)^2)+x(1)-7;

I ran A3.m but it doesn't seem to create a correct plot.

 

[tahayassen]

Got my issue solved over at MATLAB central.